334 AMERICAIS' FOSSIL BRYOZOA. Ibull.173. 



Orthopora canaliculata (Hall) — Continued. 



1883. Trematopora ? canaliculata. Hall, Rep. State Geologist New York for the 



year 1882, pi. xi, 12. 

 1887. Trematopora (Orthopora) canaliculata. Hall and Simpson, Pal. New York., 



VI, p. 17, pi. xi, 12, pi. xxiii, 9. 

 Lower Helderberg: Clarksville, New York. 



Orthopora carinata (Hall and Simpson). 



1887. Trematopora (Orthopora) carinata. Hall and Simpson, Pal. New Yoii;, 

 VI, p. 179, pi. Iv, 2, pi. Ivi, 3. 



1898. Trematopora carinata. Whiteaves, Contr. Canadian Pal., 1, p. 379. 

 Hamilton: West Williams, Ontario. 



Orthopora elongata (Hall and Simpson). 



1887. Trematopora (Orthopora) elongata. Hall and Simpson, Pal. New York, 

 VI, p. 183, pi. Iv, 11, pi. hi, 15. 



Hamilton : Near Lake Canandaigua and Lake Owasco, New York. 



Obs. Orthopora transversa and Orthopora interplana appear to be syno- 

 nyms of this species. 



Orthopora granifera (Hall and Simpson). 



1887. Trematopora (Orthopora) granifera. Hall and Simpson, Pal. New York, 

 VI, p. 186. 

 Hamilton: Owasco Lake, New Y'^ork. 



Orthopora granilinea (Hall and Simpson). 



1887. Trematopora (Orthopora) granilinea. Hall and Simpson, Pal. New York, 

 VI, pi. xxiii, 2. 

 Lower Helderberg: Clarksville, New York. 



Orthopora hexagona (Hall and Simpson). 



1887. Trematopora (Orthopora) hexagona. Hall and Simpson, Pal. New York, 

 VI, p. 178, pi. Iv, 8, pi. Ivi, 2. 



1899. Rhombopora hexagona. Grabau, Bull. Buffalo Soc. Nat. Sci., VI, p. 164, 



fig. 53. 

 1897. Rhombopora transversa. Simpson, Fourteenth Ann. Rep. State Geologist 

 New York for the year 1894, pi. xix, 12, 13. 

 Hamilton: Eighteen-Mile Creek, shore of Lake Erie, New York. 



Orthopora immersa (Hall and Simpson.) 



1887. Trematopora (Orthopora) immersa. Hall and Simpson, Pal. New York, 



VI, p. 185, pi. Ivi, 11. 

 1899. Rhombopora immersa. Grabau, Bull. Buffalo Soc. Nat. Sci., VI, p. 166, 

 fig. 57. 

 Hamilton : Darien Center and West Hamburg, New York. 



Orthopora interplana (Hall and Simpson). 



1887. Trematopora (Orthopora) interplana. Hall and Simpson, Pal. New York, 

 VI, p. 186, pi. Ivi, 12. 

 Hamilton: Near Lake Canandaigua, New York. " 

 Obs. See remark on Orthopora elongata. 



Orthopora lineata (Hall and Simpson). 



1887. Trematopora (Orthopora) lineata. Hall and Simpson, Pal. New York, 



VI, p. 181, pi. Iv, 3-6, pi. Ivi, 10. 

 1899. Rhombopora lineata. Grabau, Bull. Buffalo Soc. Nat. Sci., VI., p. 165, 

 fig. 56. 

 Hamilton: Darien Center and West Hamburg, New York. 



